Ok Jack and Coke.
First of all the J and C sounds good
secondly how about 45 kgs with ballistic polymono in a mid size estusa frame for Roberto carretero in about '97. On picking up the frame he subsequently threw it on the ground, stomped on it and then with a satisfied look said thats better !!.
I believe that's 99 lbs in your currency. I did string Muster at 88lbs in '95 and that hurt your hand when you tapped the frame against it.
All the best,
Richard